The Little Arkansas River Watershed (HUC 11030012) is located in south central Kansas, where the Little Arkansas River empties into the Arkansas River at Wichita. It covers over 1400 square miles with 478 stream miles and 88 acres of lakes. Cropland is the major land use in the watershed, and production of corn, soybeans, wheat, and grain sorghum contributes to water quality impairments within the watershed. Atrazine and sediment were identified as major pollutants from agriculture in the Little Arkansas River Watershed, and the City of Wichita spent considerable funds and time filtering water from the river to remove atrazine. The City of Wichita, along with Kansas State University Research and Extension (KSRE), developed a payment program to incentivize growers to adopt best management practices reducing the amount of atrazine that reaches the Littler Arkansas River. This presentation will highlight the success and future of this extension work as well as the history and implementation of atrazine.

Addressing agricultural pollutants in the Little Arkansas River using best management practices

256th National Meeting (2018)

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